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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2011.0313 quagga security update 22 March 2011 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: quagga Publisher: Debian Operating System: Debian GNU/Linux Linux variants BSD variants Solaris Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2010-1675 CVE-2010-1674 Original Bulletin: http://www.debian.org/security/2010/dsa-2197 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - ------------------------------------------------------------------------- Debian Security Advisory DSA-2197-1 security@debian.org http://www.debian.org/security/ Florian Weimer March 21, 2011 http://www.debian.org/security/faq - - ------------------------------------------------------------------------- Package : quagga Vulnerability : denial of service Problem type : remote Debian-specific: no CVE ID : CVE-2010-1674 CVE-2010-1675 It has been discovered that the Quagga routing daemon contains two denial-of-service vulnerabilities in its BGP implementation: CVE-2010-1674 A crafted Extended Communities attribute triggers a null pointer dereference which causes the BGP daemon to crash. The crafted attributes are not propagated by the Internet core, so only explicitly configured direct peers are able to exploit this vulnerability in typical configurations. CVE-2010-1675 The BGP daemon resets BGP sessions when it encounters malformed AS_PATHLIMIT attributes, introducing a distributed BGP session reset vulnerability which disrupts packet forwarding. Such malformed attributes are propagated by the Internet core, and exploitation of this vulnerability is not restricted to directly configured BGP peers. This security update removes AS_PATHLIMIT processing from the BGP implementation, preserving the configuration statements for backwards compatibility. (Standardization of this BGP extension was abandoned long ago.) For the oldstable distribution (lenny), these problems have been fixed in version 0.99.10-1lenny5. For the stable distribution (squeeze), these problems have been fixed in version 0.99.17-2+squeeze2. For the testing distribution (wheezy) and the unstable distribution (sid), these problems will fixed soon. We recommend that you upgrade your quagga packages. Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: http://www.debian.org/security/ Mailing list: debian-security-announce@lists.debian.org - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iQEcBAEBAgAGBQJNh6YIAAoJEL97/wQC1SS+NM8IAKIkTfjywBL7reUL+qfnDQuE Lp7/0vs/NpT3X4emH8dJiALXQkjzfr1CmyeCB+ZHxhuctr4lTCmJbcng6NPv9bxq m3RmwgBuawsqZhkAjqXJQd72zNftrGgt6kYnCk9SkgezeRkfUxZTa6QMwm/ykLAW 2WzkdXkb9CqPVIOD7Drr6gz077u3qqIAsJjgbtExNPWAgYszjCMMDb+idcI9jfAZ GdSQwsGZxqlqKbYp0DTkv7a8Q59cS8bLMZzNag+mY3wlJq1u+eAVuvplDDhU6/cx Nr6Y14LkiRGiZJ8a4j52XfJ/69HsX1TeedVDf5Z6icBa+FIoL252da0Lo1lGNgw= =5Ue5 - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: https://www.auscert.org.au/1967 iD8DBQFNh+uD/iFOrG6YcBERAugCAJ4oSiXA7d7Zm6MSJh/lA6Dx/lEVsQCgmV1H W6YR95Tj1q5lGdAxXVox428= =BwrD -----END PGP SIGNATURE-----